celly
disturber of the peace
- Joined
- July 28, 2004
- Messages
- 6,841
- Reaction score
- 25
- City, State
- calgary
- Year, Model & Trim Level
- 99 eb 5.0 awd
I've been chasing down the cause of an elusive P1151 code for a month or so. It threw a code after a slight miss about 6 weeks ago. I reset it with my Scangauge and all was well.
Then we did a road trip out to the mountains about a month ago and got multiple codes, all the same. P1151 of course. Reset it multiple times. Chalked it up to bad gas as the slight misses which preceded the code disappeared when I got back to town and filled up at a different station.
All was well until Friday night. I went to a coin op, pressure wash. They have an underbody wash as you proceed in. I pulled out and truck ran a bit rough and then threw a code. My IAC and MAF are fine. Sparkplug wires "seemed" fine. I checked wire #3 as it's given me grief in the past (real close to one of the Torque Monster header tubes). Looked fine so I reinstalled it.
I was beginning to think bad O2 sensor since it would take the brunt of the under car wash. I also had a rough idle after warmed up and has seen others who needed a new sensor with those symptoms.
This morning I fired her up. Now firing on 7 cylinders and full backfire. I went back to #3 wire and it broke when I pulled it off. Boot was spongy as hell. Seen that before. Magnecor and Aurora wires (I have the latter now) get spongy after prolonged exposure to excess heat.
I have socks on all 8 wires, and had this wire especially made to steer clear of the headers. Good thing I had a spare made last year when I last replaced the wire for the same thing. When wire boot starts to break down, moisture causes grief. Now I know to check that wire more often and keep another spare around. I'm going to talk to Aurora to see if they have any more ideas about "beating the heat". All other 7 are in great shape, but #3 gives me grief obviously. I've seen other people report the same problem.
Anyhow, she's running like a top now and all ready for road tripping to BC next weekend.
Just wanted this in the archives in case other TMH owners come across the same issue.
Then we did a road trip out to the mountains about a month ago and got multiple codes, all the same. P1151 of course. Reset it multiple times. Chalked it up to bad gas as the slight misses which preceded the code disappeared when I got back to town and filled up at a different station.
All was well until Friday night. I went to a coin op, pressure wash. They have an underbody wash as you proceed in. I pulled out and truck ran a bit rough and then threw a code. My IAC and MAF are fine. Sparkplug wires "seemed" fine. I checked wire #3 as it's given me grief in the past (real close to one of the Torque Monster header tubes). Looked fine so I reinstalled it.
I was beginning to think bad O2 sensor since it would take the brunt of the under car wash. I also had a rough idle after warmed up and has seen others who needed a new sensor with those symptoms.
This morning I fired her up. Now firing on 7 cylinders and full backfire. I went back to #3 wire and it broke when I pulled it off. Boot was spongy as hell. Seen that before. Magnecor and Aurora wires (I have the latter now) get spongy after prolonged exposure to excess heat.
I have socks on all 8 wires, and had this wire especially made to steer clear of the headers. Good thing I had a spare made last year when I last replaced the wire for the same thing. When wire boot starts to break down, moisture causes grief. Now I know to check that wire more often and keep another spare around. I'm going to talk to Aurora to see if they have any more ideas about "beating the heat". All other 7 are in great shape, but #3 gives me grief obviously. I've seen other people report the same problem.
Anyhow, she's running like a top now and all ready for road tripping to BC next weekend.
Just wanted this in the archives in case other TMH owners come across the same issue.